Ram-Flo 300 Series air filter assembly to suit 52mm (2 1/32") Central Neck. Complete with plug and spout set and clamp to install on carburettor. High volume, flame resistant and washable element can be used dry or oiled. This filter flows 300 CFM (cubic feet per minute) Dimensions: 140mm diameter x 50mm. Ram-Flo is the original and the best and 100% Australian made and owned. Suits 34 PICT Solex and 34 ICT & ICH Weber